Copying-press



(No Model.)

2 Sheets-Sheet 1.

T. B. BOYD. COPYING PRESS.

Patented Sept. 4, 1888.

2 Sheets-Sheet 2.

T. B. BOYD.

COPYING PRESS.

(No Model.)

No. 388,817 Patented Sept. 4, 1888.

UNITED STATES TRUSTIN B. BOYD, OF

PATENT OFFICE.

ST. LOUIS, MISSOURI.

COPYING-PRESS.

SPECIFICATION forming part of Letters Patent No. 388,817, datedSeptember 4, 1888.

Application filed June 14, 1896.

T0 (1 whom it may concern:

Beit known that I, TRUsTrN B. Born, of St. Louis, Missouri, have made anew and useful Improvemcntin Copying-Presses, ofwhich the following is afull, clear, and exactdescription.

This improvement is supplementary to that patented to me February 16,1886.

It relates to the construction of the several parts and theircombination together in a copying-press, all as will now be more fullyset forth and explained.

In the annexed drawings,niakingpart of this specification, Figure l. isa horizontal section on the line 1 1 of Fig. 2. Fig. 2 is a verticallongitudinal section on the line 2 2 of Fig. 1. Fig. 3 is a view inperspective ofthe improved machine, and Fig. 4 is a longitudinal sectionof the receiving'reel.

The sameletters of reference denote the same parts.

B represents the machine frame.

A represents the delivery-reel, upon which the web of paper for takingthe impressions is wound.

The web C, as shown in Fig. 2, leads from the reel A under the watertank G, upward past the farther side of the tank, thence over the tank,the longitudinal edges at top and bottom of which are rounded for thepurpose, and between a roll, I)", which is adapted to be rotated in thewater g of the tank, and the roll D, immediatelyabove the roll I)". Theweb is then carried ha'f around the roll D and between it and the rollI) above the roll D, and thence it is carried to and wound upon thereceivingrcel F. The rolls D 1) D are respectively attached to theshafts d d d, the rcel'A to the shaft a, and the reel F consists of asleeve, f, upon a shaft, f, which is provided with apulley, f. A belt,E, leads from apulley, (1, upon the shaft d to the pulleyf". Motion iscommunicated to the working parts of the machine by means of the crankH, which is attached to the shaft (1, and when the crank is rotated theweb U is drawn through the rolls in the manner shown and described andwound upon the reel F.

In the original construction above referred to the paper passed directlythrough a pair of rolls corresponding to the two rolls 1) D of thepresent construction, and in so doing came in contact with the rolls ata single point only.

Serial No. 205,162. (No model.)

By reason of this the paper was not thoroughly dampened. Thedifficultyis overcome by employing the three rolls I) D D, as shown, forby the time the paper has passed the middle roll in the manner describedit is sufficiently moistened for the purpose in view. As the web iswound upon the reel F, the reel increases in diameteigand were it notforthe provision about to be described the tension upon the web wouldbecome so great as to cause the web to part between the rolls I) D andthe receiving-reel. To prevent this, the sleevef is not fastened to theshaft so as to be controlled by the shaft, but is sufficiently loosethereon to be in its rotation controlled rather by the webthat is, thesleeve fits the shaft closely enough to be carried by n-iction aroundwith it, saving when the web draws backward upon it, whereupon it slipsupon the shaft accordingly. The belt E can also be made to slip upon thepulleys to prevent the web from parting. Upon the delivery end of themachineframe is a blade or edge, preferably in the form of the serratedstrip 1, Figs. 1, 2, and 3, for severing the web, after it has beenwound upon the receivingreel, into sheets, the dc sirable practice inthis respect being to wind the web onto the reel and allow it to remainthere until it has dried, after which it can be unwound from the reel Fand drawn over the part I and thereby severed into any desired length.The recl F need not in all cases be used, and the web, as the copying isdone, may be drawn over the blade I and severed, as described.

The shat't of the reel F may have a part, f", Fig. 4, fastened to it, inwhich case the sleeve fis loose on the partf, or the partsff may be onepiece.

I claim In a copying-press, the combination of the tank G,having roundedbottom and top edges, with the paper-reel A, the rollsD D and the reelF, whereby the paper is fed beneath the tank and over its edge andaround the roll I) to the reel F, the several parts constructed andoperating substantially as described.

\Vitness my hand.

TRUSTIN B. BOYD.

\Vitnesses:

O. I). MOODY, B. F. REX.

